CN102233221B - A kind of Water-fog dusting apparatus - Google Patents
A kind of Water-fog dusting apparatus Download PDFInfo
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- CN102233221B CN102233221B CN201010157339.4A CN201010157339A CN102233221B CN 102233221 B CN102233221 B CN 102233221B CN 201010157339 A CN201010157339 A CN 201010157339A CN 102233221 B CN102233221 B CN 102233221B
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- mist device
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Abstract
Water-fog dusting apparatus. The present invention relates to a kind of Water-fog dusting apparatus that flue gas is carried out depositing dust, purification, be in environmental technology field. Including shell, in shell, it is disposed with spray dust land a, mist device a, mist device b, spray dust land b, mist device c, residual gas discharge region from bottom to top; The bulky grain flue dust sedimentation that the water smoke that wherein mist device a is formed catches in untreated flue gas is discharged; Water smoke and the flue dust not settled that mist device b is formed combine formation coalition; The water smoke that mist device c is formed catches coalition sedimentation and discharges. The invention have the advantage that flue gas is carried out third dedusting process by three mist devices by the present invention, effectively eliminate the dust of variable grain, solve the defect that tradition dust arrester efficiency of dust collection is low.
Description
Technical field
The present invention relates to a kind of Water-fog dusting apparatus that flue gas is carried out depositing dust, purification, be in environmental technology field.
Background technology
Along with the fast development of industry, country has attached great importance to environmental protection, one of efforts at environmental protection, it is simply that the depositing dust of flue gas, dust suppression, purifies the waste gas of discharge. To reach country's waste gas emission standard.
The water smoke purification to discharge waste gas, the cost-effective method of one being conventional. Current gas wash tower or chimney mist purification flue gas, being adopt big flow nozzle for atomizing water with air (being commonly called as spray gun), the general Average droplet diameter that produces is that (weight ratio of its droplet size is generally divided into about 250um: fogdrop diameter is: about 6 one-tenth of below 150um; More than 150um accounts for about 4 one-tenth), be fully combined with flue gas (when being 8m/s according to the flow velocity of general flue gas, fogdrop diameter is: below 150um for can not drop heavy; Fogdrop diameter is: more than 150um is heavy for dropping), it is possible to the coalition sedimentation of sedimentation is discharged, and less coalition will discharge chimney with air-flow, and therefore efficiency of dust collection is low, and the dust burdening discharging waste gas is generally 100mg/Nm3Left and right.
Summary of the invention
The present invention is directed to drawbacks described above, it is therefore intended that provide a kind of Water-fog dusting apparatus improving flue gas ash removal efficiency.
The technical scheme is that the present invention includes shell, in shell, be disposed with spray dust land a, mist device a, mist device b, spray dust land b, mist device c, residual gas discharge region from bottom to top; The bulky grain flue dust sedimentation that the water smoke that wherein mist device a is formed catches in untreated flue gas is discharged; Water smoke and the flue dust not settled that mist device b is formed combine formation coalition; The water smoke that mist device c is formed catches coalition sedimentation and discharges.
The invention have the advantage that flue gas is carried out third dedusting process by three mist devices by the present invention, effectively eliminate the dust of variable grain, solve the defect that tradition dust arrester efficiency of dust collection is low.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention
Figure 1 is shell, 2 be spray dust land a, 3 be mist device a, 4 for mist device b, 5 spray dust land b, 6 mist device c, 7 residual gas discharge region;
Fig. 2 is the structural representation of single mist device
Figure 8 is atomizer, 9 be chimney wall, 10 be water pipe, 11 for water ring.
Detailed description of the invention
The work process of the present invention is: flue gas stream is from bottom to top by shell 1, first pass through spray dust land a2, the water smoke of spray dust land a2 is provided by mist device a3, wherein mist device a3: adopt big yield nozzle for atomizing water with air 8, produce Average droplet diameter and be generally the water smoke of about 250um, function: mainly drop the flue dust of heavy larger particles; Flue-gas temperature, speed are greatly lowered, drop heavy preparatory condition for rear road little granule flue dust.
Flue gas stream is by, after mist device a3, entering mist device b4, wherein mist device b4: mist device b4 adopts little water yield air water atomization combination nozzle, produces Average droplet diameter and is generally the water smoke of about 80um, function: drop little part flue dust of heavy smaller particle; Major part water smoke fills part and is combined and produces bigger coalition, (but can not drop heavy) with flue dust, can drop the affinity type capturing condition that the depositing dust offer of heavy little water droplet is superior in a large number for rear road.
And then flue gas flows into spray dust land b5, spray dust land b5 water smoke water smoke is provided by mist device c6, and wherein mist device c6: mist device c6 adopts combination water nozzle, i.e. a kind of (operating) water nozzle combinative structure form to spray, producing Mini-type water drop mist field, droplet average diameter is generally about 300um. Experiments show that its water smoke drips through uniformly, the droplet of < 150um can be controlled in 10/100 (weight) left and right. At work, droplet from top to bottom lands, and forms a three-dimensional filter, showy water smoke and flue dust coalition, will land discharge through three-dimensional moisture separator after efficiently being caught.
Last flue gas is by, after above-mentioned process, discharging by residual gas discharge region 7.
Further, wherein spray dust land a2 typically has a size of more than 5m; Spray dust land b5 typically has a size of the distance that flue gas is passed by the time of more than 1.5s; Residual gas discharge region 7 typically has a size of more than 3m;
Each mist device of the present invention according to the shape of different chimney walls 9, can make corresponding shape, so that it is fixed on chimney wall 9, atomizer 8 extends in flue so that flue gas flows through from atomizer 8, and atomizer 8 connects water ring 11 by water pipe 10. the injection direction of the atomizer 8 of the present invention is arranged against flue gas flow direction, in order to better, formation mist field evenly, each atomizer 8 of the present invention is arranged on same level, and be circumferentially uniformly arranged, the mist field that such atomizer 8 is formed will uniformly and firmly, can effectively catch the flue gas of all directions, to reduce the dust burdening of flue gas to greatest extent, simultaneously in order to form the mist field of different fogdrop diameter, to adapt to different needs, the present invention passes through the structure of atomizer 8 and the number of setting, difference and the other factors of hydraulic pressure are regulated, to form the mist field of different fogdrop diameter.
Claims (2)
1. utilizing the method that Water-fog dusting apparatus carries out fume treatment, described Water-fog dusting apparatus includes shell, is disposed with spray dust land a, mist device a, mist device b, spray dust land b, mist device c, residual gas discharge region in shell from bottom to top; The bulky grain flue dust sedimentation that the water smoke that wherein mist device a is formed catches in untreated flue gas is discharged; Water smoke and the flue dust not settled that mist device b is formed combine formation coalition; The water smoke that mist device c is formed catches coalition sedimentation and discharges, it is characterised in that process step as follows:
Flue gas stream passes through shell from bottom to top, first passing through spray dust land a, the water smoke of spray dust land a is provided by mist device a, wherein mist device a: adopt big yield nozzle for atomizing water with air, producing Average droplet diameter is the water smoke of 250um, drops the flue dust of heavy larger particles; Flue-gas temperature, speed are greatly lowered, drop heavy preparatory condition for rear road little granule flue dust;
Flue gas stream is by, after mist device a, entering mist device b, wherein mist device b: mist device b adopts little water yield air water atomization combination nozzle, and producing Average droplet diameter is the water smoke of 80um, drops little part flue dust of heavy smaller particle; Major part water smoke is fully combined the bigger coalition of generation with flue dust, can drop the affinity type capturing condition that the depositing dust offer of heavy little water droplet is superior in a large number for rear road;
And then flue gas flows into spray dust land b, spray dust land b water smoke is provided by mist device c, wherein mist device c: mist device c adopts combination water nozzle, i.e. a kind of (operating) water nozzle combinative structure form to spray, produces Mini-type water drop mist field, and droplet average diameter is 300um; Experiments show that its water smoke uniform diameter, < droplet of 150um can be controlled in 10/100 weight, at work, droplet from top to bottom lands, form a three-dimensional filter, showy water smoke and flue dust coalition, will land after efficiently being caught discharge through three-dimensional filter;
Last flue gas is by, after above-mentioned process, discharging by residual gas discharge region.
2. a kind of method utilizing Water-fog dusting apparatus to carry out fume treatment according to claim 1, it is characterised in that wherein spray dust land a is of a size of more than 5m; Spray dust land b is of a size of the distance that flue gas is passed by the time of more than 1.5s; Residual gas discharge region is of a size of more than 3m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010157339.4A CN102233221B (en) | 2010-04-26 | 2010-04-26 | A kind of Water-fog dusting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010157339.4A CN102233221B (en) | 2010-04-26 | 2010-04-26 | A kind of Water-fog dusting apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102233221A CN102233221A (en) | 2011-11-09 |
| CN102233221B true CN102233221B (en) | 2016-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010157339.4A Active CN102233221B (en) | 2010-04-26 | 2010-04-26 | A kind of Water-fog dusting apparatus |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1317360A (en) * | 2000-04-13 | 2001-10-17 | 刘连举 | Method and equipment for purifying flue fume |
| CN2569885Y (en) * | 2002-08-29 | 2003-09-03 | 济南钢铁股份有限公司 | Washing dust remover |
| CN200977444Y (en) * | 2006-08-29 | 2007-11-21 | 淄博大工机械有限公司 | Water cleaning dust removing device |
| KR100821611B1 (en) * | 2007-03-15 | 2008-04-15 | (주)세우엔지니어링 | Wet dust collector processing dust particles and gas synchronously and processing method thereof |
| CN201231118Y (en) * | 2008-06-27 | 2009-05-06 | 宝山钢铁股份有限公司 | Chimney tail-gas purification device |
| CN201692745U (en) * | 2010-04-26 | 2011-01-05 | 江苏博际环保工程有限公司 | Water mist dust removing device |
-
2010
- 2010-04-26 CN CN201010157339.4A patent/CN102233221B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1317360A (en) * | 2000-04-13 | 2001-10-17 | 刘连举 | Method and equipment for purifying flue fume |
| CN2569885Y (en) * | 2002-08-29 | 2003-09-03 | 济南钢铁股份有限公司 | Washing dust remover |
| CN200977444Y (en) * | 2006-08-29 | 2007-11-21 | 淄博大工机械有限公司 | Water cleaning dust removing device |
| KR100821611B1 (en) * | 2007-03-15 | 2008-04-15 | (주)세우엔지니어링 | Wet dust collector processing dust particles and gas synchronously and processing method thereof |
| CN201231118Y (en) * | 2008-06-27 | 2009-05-06 | 宝山钢铁股份有限公司 | Chimney tail-gas purification device |
| CN201692745U (en) * | 2010-04-26 | 2011-01-05 | 江苏博际环保工程有限公司 | Water mist dust removing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102233221A (en) | 2011-11-09 |
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